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PartsTable / COMPONENT / AS21919WCJ12
AS21919WCJ12 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.1990 INCHES MINIMUM AND 0.2090 INCHES MAXIMUM IN, material: STEEL COMP 302 OR STEEL COMP 321 BAND, overall_width: 0.2030 INCHES MINIMUM AND 0.2320 INCHES MAXIMUM IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, material_thickness: 0.0320 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-254-5025, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
AS21919WCJ12
NSN: 5340-00-254-5025
FSC: 5340
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
diameter0.1990 INCHES MINIMUM AND 0.2090 INCHES MAXIMUM IN
materialSTEEL COMP 302 OR STEEL COMP 321 BAND
overall_width0.2030 INCHES MINIMUM AND 0.2320 INCHES MAXIMUM IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.0320 INCHES NOMINAL IN
loop_inside_diameter0.7350 INCHES MINIMUM AND 0.7650 INCHES MAXIMUM IN
material_document_and_classificationAMS-5510 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end1.0600 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.8270 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
NSN5340-00-254-5025
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS21919WCJ12 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING BAND
•
SURFACE TREATMENT: PASSIVATE BAND
•
STYLE DESIGNATOR: OFFSET MOUNT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6721 MIL SPEC SINGLE MATERIAL RESPONSE BAND
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.060 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
LOOP INSIDE DIAMETER0.750 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING BAND
SURFACE TREATMENTPASSIVATE BAND
STYLE DESIGNATOROFFSET MOUNT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6721 MIL SPEC SINGLE MATERIAL RESPONSE BAND
MATERIALRUBBER SYNTHETIC OR PLASTIC CUSHION
DISTANCE FROM LOOP CENTER TO TONGUE END1.060 INCHES NOMINAL IN
CUSHIONING ENVIRONMENTAL PROTECTIONFUEL, AROMATIC
TONGUE HOLE TYPEROUND, UNTHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MIL-DTL-8603Upgraded Successor
successor cross-reference
successor
TA1716WS4Upgraded Successor
successor cross-reference
successor
MS21919WG4Upgraded Successor
successor cross-reference
successor
MIL-C-8603Upgraded Successor
successor cross-reference
successor
MS21919CJ12Upgraded Successor
successor cross-reference
successor
10335339Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS21919WCJ12?
AS21919WCJ12 is a CLAMP,LOOP.
What parts can replace AS21919WCJ12?
There are 17 known substitutes for AS21919WCJ12: MIL-DTL-8603, TA1716WS4, MS21919WG4 and 14 more. Substitute compatibility should be verified for your specific system.
Is AS21919WCJ12 still available?
AS21919WCJ12 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026